Attachment for elevators to indicate alinement of floors.



B. BRODOWSKI. ATTACHMENT FOR ELEVATORS T0 INDICATE ALINEMENT 0I FLOORS.

APPLIOATION FILED DEC. 23, 1909.

Patented Apr. 5, 1910.

Mil 4071? IBOLESLOW BRODOWSKI, OF PHILADELPHIA, PENNSYLVANIA.

ATTACHMENT FOR ELEVATORS TO INDICATE ALINEMENT OF FLOORS.

Specification of Letters Patent.

Patented Apr. 5, 1910.

Application filed December 23, 1909. Serial No. 534,632.

To all whom it may concern:

Be it known that I, BOLESLOW BRODOWSKI, a subject of the Emperor ofRussia, residing in Philadel hia, in the county of Philadelphia and tateof Pennsylvania, have invented certain new and useful Improvements inAttachments for Elevators to Indicate Alinement of Floors; and I dohereby declare the following to be a full, clear, and exact descriptionof said improvements, such as will enable others skilled in the art towhich it appertains to make and use the same.

The herein described device relates to an attachment for elevatorswhereby the alinement of the floor of an elevator car with the floor ofa room or landing can be seen at a glance by the occupants of the car aswell as the operator, owing to the fact that'the device is on a planewith the eyes of the operator of the elevator car.

It is a known fact that operators of elevators are often required, afterhaving reached a floor of a building, to extend one of their feet overthe sill of the car to ascertain if the floor of the elevator is plumb,or in alinement with the landin floor so that passengers may enter or mae an exit without tri ping over any undue height of either the oor of aroom or of the elevator. By the placing of the foot upon the two floorsthe o erator assumes considerable risk, and is in anger of accidents,and, also, if the car is not lumb with the room floor, is required toraise or lower the car in intermittent or spasmodic jerks, which notonly is of an injurious nature to the mechanism of the elevator, butalso annoying to the passengers of the car. It is also known that theoperator is to one side of the car, and when the latter is crowded, theoperator is very often unable to see the floors, so that, when a car isapproaching a floor, the operator can by keeplng his eyes on the pointeron the front inside frame of the car, readily and immediately stop thecar when the twin pointers are dlrectl opposite one to the other.Passengers a so are required to first look at the sill or floor of a carto ascertain whether they shall have to step up or down in leaving orentering a car, and women are in danger of having their dresses tornwhen the oors are not in alinement.

The device, therefore, has for an object to prov de means to positivelypoint and show alinement between the floor of an elevator and the floorof a room or landing.

A further object lies in the fact that the device is readily, easily andcheaply made of metal or like material and attached in the properpositions, and to be of such assistance to a person running an elevatoras to obviate all jerky stopping of cars.

Other objects and advantages will appear in the specifications thatfollow, in which the novel features, construction and arrangement willbe brought out, described and claimed.

Reference is to be had to the accompanying drawin s which form part ofthis specification, an in which similar numerals indicate correspondingparts in all the figures.

Figure 1 is a perspective view partly in section, showing the pointersin position, with door partially open. Fig. 2 is a view in perspectiveof one of the pointers. Fig. 3 is a detail View partly in section of oneof the methods of attaching the pointer.

To more fully describe the drawings, and to make clear the operation andpurpose of the herein described device :The numeral 1 indicates thefloor of an elevator car; 2 the floor of a landing or room; 3 a pointerattached to the sliding door between the elevator car floor and thelandin floor; 4 a pointer secured to the front inslde frame of theelevator car; 5 a support or part of a room or a landin running from thefloor to the ceiling; 6 a s iding screen door between the elevator carfloor and the landing floor; 7 one of the methods of attaching pointersby screws or other means; 8 a clamp for securin one of the pointers tothe screen or like oors when the ointers cannot be secured or fastenedin any other manner.

The method of adjustment and use of my herein described improvement isas follows: The elevator car floor 1 is brought to a level with thefloor or landing of a room, 2, a pointer 4 is then attached to the frontframe of the elevator car by either riveting or screwing to said frame;the pointer 3 is then secured to the door 6 of the elevator shaft, if ascreenv door by means of a clamp engaging with the screen and pressingthe pointer 3 firmly against said screen, if of other con struction andmaterial, by screwing or any other well known securing means.

In use, when the elevator car is approaching a floor the operator can,owing to the fact that both pointers come to a level with the eyes, stopthe elevator car when both pointers are directly opposite one to theother, instead of first opening the door and then placing a foot on thetwo floors 1 and 2 to ascertain if they are on a level, during whichtime a passen er is liable to start from an elevator car, an, theoperator not being satisfied with the uneven position of the two floors,either raises or lowers the car, and the exiting passenger is liable totrip or be thrown, which might result in serious injury,

By the use of my herein described invention the door of an elevator neednot be opened until the operator is satisfied that the floors are level,thus assuring safety to himself, the passengers and the mechanism of theelevator.

Many minor changes may be made in the precise details and exactarrangement of the various parts of my invention" herein illustrated,and I do not intend to be in any Way restricted to these specificembodiments of the invention as herein given, the same being presentedmerely for illustrative purposes.

Having thus described my invention, what I claim as new, and desire tosecure by Letters-Patent is:

1. In a device of the character specified in combination with the doorof an e evator pointer on the elevator shaft door, said' pointersadapted to come in alinement one with the other, and the means forremovable attachment of said Vointers, one to the door of said elevatorsha t, the other to the aforesaid frame of the elevator car, as hereinde scribed and shown.

2. In a device of the character described in combination with anelevator car and a shaft door spaced therefrom, twin pointers composedof metal or likesubstance facing in opposite directions one of which ismaintained on said shaft door and the other on the aforesaid side of theelevator car in position at ri ht angles to said vshaJft door and theside rame affording a relativel Y static-nary pointer and a polntermovab e with the aforementioned elevator car, substantially as set forthand shown in the drawings.

In testimony whereof I aflix my signature in the presence of twosubscribing witnesses.

BOLESLQW BRODOWSKI.

Witnesses WM. M. WEISMAN, D. \SOHERMER.

